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100-Metodos-de-Qualidade-Total

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188 <strong>100</strong> METHODS FOR TOTAL QUALITY MANAGEMENT<br />

Method 82<br />

Matrix diagram<br />

Purpose<br />

To provi<strong>de</strong> information about the relationship and importance of task and<br />

method elements of the subject.<br />

When to use<br />

To organize and illustrate graphically the largest amount of data for the<br />

logical connection between various elements to show the importance of<br />

different relations by using graphic symbols.<br />

How to use<br />

The most commonly used matrix diagram is shown in quality function<br />

<strong>de</strong>ployment (see Method 26).<br />

Benefits<br />

Simple method to show relationship between task and subject.<br />

Operator Supervisor<br />

Machine<br />

produces L- .. ·1<br />

rejects<br />

,<br />

1 Stop I<br />

Quality Product<br />

control engineering<br />

I Yes<br />

Rejects r-_I Analyse 1<br />

the reject<br />

Yes<br />

1 Stop I No I Repair 1<br />

machine production I - I possible<br />

I Start l Ready for ..<br />

production production I<br />

iYes<br />

l Repair the<br />

problem<br />

<br />

Maintenance<br />

i<br />

I Repair . the machIne J<br />

J<br />

l Machine <br />

repaired<br />

I- I<br />

Figure 1<br />

Matrix diagram

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